3. which of the following occurred before the cambrian explosion?

4. the simplest animals to have body symmetry are?

5. look at figure 26-1. the cladogram suggests that the cambrian explosion most likely took place after the development of which characteristic?

Which statement best describes lactic acid fermentation? a. lactic acid fermentation is the first step of cellular respiration. o b. lactic acid fermentation is the final step of cellular respiration. re to berate c. in the absence of oxygen, cells release atp by breaking down lactose into glucose. e der lade res o d. in the absence of oxygen, cells release atp by breaking down glucose into lactate. ar

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.